I just started playing civilization 5. I gave a gift a of gold to a city-state, and it worked, and we became friends. When my influence started to go down, I attempted to give another gift of gold, but each time I click on it, it just takes me back to the previous screen. I tried closing down the game and reopening, and I tried giving gifts of gold to other city-states, with the same results. Has anyone else encountered this glitch, and what did you do?